test: improve coverage of tests for e2e

test/e2e.spec.ts

@@ -111,4 +111,11 @@ export class E2EConnectorSpec {
     return indexSamples(httpClient, {to: 'http://localhost', samples: './node_modules/@openstapps/core/test/resources'})
     .should.be.rejectedWith(ApiError);
   }
+
+  @test
+  async indexShouldFailDirectoryWithoutData() {
+    return indexSamples(httpClient, {to: 'http://localhost', samples: './test/emptyDir/'})
+    .should.be.rejectedWith('Could not index samples. None were retrived from the file system.');
+  }
+  
 }

test/emptyDir/.gitignore

@@ -0,0 +1,4 @@
+# Ignore everything in this directory
+*
+# Except this file
+!.gitignore